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			33 lines
		
	
	
	
		
			885 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
	
		
			885 B
		
	
	
	
		
			Python
		
	
	
	
	
	
"""
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Tests for F() query expression syntax.
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"""
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from __future__ import unicode_literals
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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@python_2_unicode_compatible
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class Employee(models.Model):
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    firstname = models.CharField(max_length=50)
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    lastname = models.CharField(max_length=50)
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    def __str__(self):
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        return '%s %s' % (self.firstname, self.lastname)
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@python_2_unicode_compatible
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class Company(models.Model):
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    name = models.CharField(max_length=100)
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    num_employees = models.PositiveIntegerField()
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    num_chairs = models.PositiveIntegerField()
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    ceo = models.ForeignKey(
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        Employee,
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        related_name='company_ceo_set')
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    point_of_contact = models.ForeignKey(
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        Employee,
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        related_name='company_point_of_contact_set',
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        null=True)
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    def __str__(self):
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        return self.name
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